CVE-2026-30403

Name: CVE-2026-30403
Creator: NVD / NIST
Published: 2026-03-19T17:16:23.95+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2026-30403 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. There is an arbitrary file read vulnerability in the test connection function of backend database management in wgcloud v3.6.3 and before, which can be used to read any file on the victim's server.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

There is an arbitrary file read vulnerability in the test connection function of backend database management in wgcloud v3.6.3 and before, which can be used to read any file on the victim's server.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.38%

29.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Wgstart	Wgcloud	<= 3.6.3

References

https://github.com/TTTlw1024/qwe/issues/2Exploit, Issue Tracking
https://github.com/tianshiyeben/wgcloud/issues/97Issue Tracking

Timeline

Published: Mar 19, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-30403?

There is an arbitrary file read vulnerability in the test connection function of backend database management in wgcloud v3.6.3 and before, which can be used to read any file on the victim's server.

How severe is CVE-2026-30403?

CVE-2026-30403 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2026-30403?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-30403?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST